mleibman/SlickGrid — pull request #274 by ghiscoding (2012-02-03 00:53:01+00:00)
Title: Added a Sum Aggregator on the Group By and fixed problems with other Aggregator on Grouping calculation

Hello, I added a Sum Aggregator into your DataView which is quite useful in my case.

As for the problems fixed with the other Aggregators it's simply that it was not returning any values on the Grouping when an empty String is caught in the data.

Example: [cell1] : 1, [cell2] : 2, [cell3] : "" --> Should return Avg of 1.5 though it was returning nothing since at the end the result was NaN and nothing is displayed which is the empty String fault....

P.S. I'm completely new to Git commit changes, so hopefully I sended it correctly
Thanks
Ghislain